Chloride-of-silver battery



Patented Aug. 7, 1883.-

.Invent/Q73' ranja.

P. S. HAYES.

GHLORIDB 0F SILVER BATTERY.

(Model.)

UNITED STATES PATENT OFFICE.I

PLYMMON S. HAYES, OF CHICAGO, ILLINOIS.

CHLORIDE-OF-SILVER BATTERY.

SPECIFICATION forming part of Letters Patent nNo. 282,634, dated August '7, 1883.

Application filed October21,1882. (Model.)

To all whom it may concern:

Be it`known that I, PLYMMON S. HAYES, a citizen of the United States, residing in the city of Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Chlorideof- Silver Batteries andIdo hereby declarethat the following specification is a true, clear, and complete description of my invention, and that it will enable others skilled in the art to which it appertains to make and use the same.

The object of my improvement is to prevent the gradual exhaustion of the chlorideof-sil'ver battery, when not in use, through the connection of the poles of the battery by the liquid from the battery` adhering to the lower surface of the stopper or conveyed through it by permeation, and to prevent the formation of sulphide of silver on the silver wire which forms the positive pole of the battery, and to make the battery portable. These results I claim to have fully accomplished by my invention, which is illustrated by the accompanying drawings, viz.-

Figure 1 showing a perspective view, and Fig. 2 showing a vertical sectional view, Figs. 3 and 4 showing horizontal or top views.

Similar letters refer to similar parts in each.

My invention consists of the insulating glass tube D, extending from the top of the chlorideof-silver plate B through one of the three perforations in the stopper L and above the same Y a convenientlength for practical use. Through this insulating glass tube a fine silver wire, E, passes and is carefully cemented therein, extending from the top of the chloride-of-silver plate-B, which is submerged in the batteryiiuid K, through the insulating'glass tube D, and above the same a sufficient length for practical use. The insulating glass tube D thoroughly covers the silver wire E,which, from its connection with the chloride-of-silver plate B, forms the positive pole of the battery and prevents the positive and negative poles M and N from connection by action of the battery-fluid K by its adherence to the under side or permeation through the stopper L. The insulating glass tube D also prevents the silver wire E from coming in contact with the stopper L, and prevents it from being acted upon by the sulphur contained therein when a rubber stopper is used. The insulating glass tube D furthermore stiffens or supports the silver wire E and renders the silver-chloride plate B less liable to i places with holes of proper caliber, forming the 6 5 r points of an equilateral triangle far enough distant from the periphery of the stopper for the purposes intended, which are as follows, viz: Through one of these perforations of the stopper L a capillary glass tube, F, with a small 7o bulb near its upper extremity, is inserted, reaching through and terminating with the under surface of the stopper L,which is to operate as a vent for the escape of gas, if any should be generated in the battery, the opening being too small, however, to allow the batteryfluid to escape or run through it, even if the battery should fall upon its side or be turned/ upside down, and without whichfventmthe battery-uidwould ,beforced around the poles SO of the battery M and N, which pass through the stopper L or between it and the sides of the vessel or cell. Through another of ythese perforations in the stopper L the negative pole N ofthe zinc plate C passes. rllhrough the third or remaining perforation the insulating glass tube D, which I particularly claim as my invention or improvement, passes, inclosing the silver wire E, which connects with and passes through the full length of the chloride-of-sil- 9o ver plate B and through the insulating glass tube D a sufficient length'for the uses intended, said insulating glass tube D extending below the surface of thebattery-iiuid K and completely insulating the silver wire E down to the point where'it enters and passes through the full length of the chloride-of-silver plate B. The battery-fluid K consists of about two per cen/t. of solution of sodium chloride, or the g same quantity of ammonium chloride, and Ioo ninety-eight per cent. of distilled water.

The zinc plate C is made of rolled zinc of suitable length, breadth, and thickness, the upper end turned down to the proper sizeto admit its passing from the underneath side of the stopper L, and extending a suitable distance above the upper surface of the stopper L, on the apex of which is fitted a screw, H, which passes through the small copper washers l and I, which answers the purpose of a binding-post for connecting the wire of the negative pole N.

The chloride-of-silver plate B consists of perfectly pure chloride of silver fused on a wire of pure silver, E, the wire extending through the full length of the plate B, and of sufficient length above the upper end of the plate B to extend through the insulating glass tube D, and of suiiicient additional length -for practical use.

Vhere a rubber stopper is used all that part of it remaining above and outside the mouth of the jaw or cell A A should be yarnished to prevent the exhalation of vsulphur from the rubber.

A chloride-of-silver battery is oneof exceedingly constant velectro-motive force. It occupies but a comparatively small space. The battery-Huid contains no free acid. The silver chloride furnishes a constant supply of chlorine when the battery is in use, and this supply of chlorine continues until all the sil- What I claim as my invention or improvement in a chloride-ofv-silver battery, and desire to secure by Letters Patent of the United States, 1s

The combination, in a chloride-of-silver battery, ofthe glass tube D, inclosing the silver,

wire E, which coimectswith the silver plate B andthe capillary glass tube F, with a small bulb near its upper extremity, substantially as described.

' PLYMMON S. HAYES. Vitnesses:

C. H. BRADLEY, M, K. LIsroN. 

